The door to the Vault will be blown open and occupied by both Fallen and Vex, including the dangerous Headless Praetorians. Fight through the caverns and down into the depths of the Vault.

The Fallen Wolves will enable the Oracles as a means to slow or stop you. Consider sniping the enemies from afar before going down below. All Oracles can be sniped from the upper ledge from different positions. Scortch Captains will spawn below near the end of the mission.